Changes in brain may start before birth, autism study says

March 27, 2014, 8:13 AM|A new study finds evidence that autism begins during pregnancy. Researchers say brain irregularities in children with the disorder can be traced back to pre-natal development. Dr. Melissa Nishawala, director of autism for the New York University Child Study Center, joins "CBS This Morning" for a conversation on what this could mean for many expectant moms and their children.